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Assignment 5-6-3

Hydraulic Systems Review

QuestionAnswer
1. What is Pascal's Law? Pressure applied to an enclosed or confined liquid is transmitted equally in all directions without loss and acts with equal surface
2. What is the output pressure of most aircraft hydraulic system? 3,000 psi
3. What do hydraulic system multiply? Force
4. The force multiplication achieved in a hydraulic system is accomplished by a decrease in _________________ movement. Linear
5. What are the two types of power pumps used to generate fluid pressure in hydraulic systems? Constant displacement and variable displacement pumps.
6. What are the functions of the reservoir? Store fluid, trap impurities, dissipate heat, and purge air bubbles.
7. What does the pressure regulator or unloader valve do during normal operations? Used with the constant displacement pump. Regulates the system pressure to normal limits.
8. What is the purpose of the accumulator? System shock absorber, supplements system pressure during peak operations, one time emergency use.
9. What is the function of the check valve? Ensure one way fluid flow
10. What is the purpose of the selector valve? Redirects the flow of hydraulic fluid, changing the direction of travel to the actuator.
11. Why is a relief valve included in a hydraulic system? As a Safety backup in case of over pressure of hydraulic system.
12. Changing the position of the selector valve will have what effect on the movement of the fluid in the system? Reverse the flow of hydraulic fluid, changing the direction 13 of the travel to the actuator.
13. What is the purpose of the hydraulic fuse? Helps guard against leaks by isolating a parts of the systems.
14. What is the purpose of the actuating cylinder? Converts' fluid energy into mechanical motion
Created by: Rudyrm
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